So, if anyone is planning to make someone be the admin of the buddypress, you can assign “delete_users” capability to that particular user (using your fav user role plugin).

Though, they will have access to (obviously) user deletion and some other plugin settings which checks for “is_super_admin”.

In my case it’s okay because the one I’m assigning the role to is a friend. I just don’t want them to have access to core/plugin/theme update&installs (is there anything else I should be concerned when indirectly assigning someone as super admin by the above method?).